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ca10883e DS |
1 | /* |
2 | Copyright 2011 by Matthieu Boutier and Juliusz Chroboczek | |
3 | ||
4 | Permission is hereby granted, free of charge, to any person obtaining a copy | |
5 | of this software and associated documentation files (the "Software"), to deal | |
6 | in the Software without restriction, including without limitation the rights | |
7 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
8 | copies of the Software, and to permit persons to whom the Software is | |
9 | furnished to do so, subject to the following conditions: | |
10 | ||
11 | The above copyright notice and this permission notice shall be included in | |
12 | all copies or substantial portions of the Software. | |
13 | ||
14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
15 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
16 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
17 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
18 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
19 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
20 | THE SOFTWARE. | |
21 | */ | |
22 | ||
23 | #include <zebra.h> | |
24 | #include "memory.h" | |
25 | #include "log.h" | |
26 | #include "command.h" | |
27 | #include "prefix.h" | |
28 | #include "vector.h" | |
29 | #include "distribute.h" | |
f135ba52 | 30 | #include "lib_errors.h" |
ca10883e DS |
31 | |
32 | #include "babel_main.h" | |
33 | #include "util.h" | |
34 | #include "kernel.h" | |
35 | #include "babel_interface.h" | |
36 | #include "message.h" | |
37 | #include "route.h" | |
38 | #include "babel_zebra.h" | |
39 | #include "neighbour.h" | |
40 | #include "route.h" | |
41 | #include "xroute.h" | |
f135ba52 | 42 | #include "babel_errors.h" |
ca10883e | 43 | |
8b7454e9 DL |
44 | DEFINE_MTYPE_STATIC(BABELD, BABEL_IF, "Babel Interface") |
45 | ||
ca10883e DS |
46 | #define IS_ENABLE(ifp) (babel_enable_if_lookup(ifp->name) >= 0) |
47 | ||
48 | static int babel_enable_if_lookup (const char *ifname); | |
49 | static int babel_enable_if_add (const char *ifname); | |
50 | static int babel_enable_if_delete (const char *ifname); | |
51 | static int interface_recalculate(struct interface *ifp); | |
52 | static int interface_reset(struct interface *ifp); | |
53 | static int babel_if_new_hook (struct interface *ifp); | |
54 | static int babel_if_delete_hook (struct interface *ifp); | |
55 | static int interface_config_write (struct vty *vty); | |
56 | static babel_interface_nfo * babel_interface_allocate (void); | |
57 | static void babel_interface_free (babel_interface_nfo *bi); | |
58 | ||
59 | ||
60 | static vector babel_enable_if; /* enable interfaces (by cmd). */ | |
61 | static struct cmd_node babel_interface_node = /* babeld's interface node. */ | |
62 | { | |
63 | INTERFACE_NODE, | |
64 | "%s(config-if)# ", | |
65 | 1 /* VTYSH */ | |
66 | }; | |
67 | ||
68 | ||
69 | int | |
121f9dee | 70 | babel_interface_up (ZAPI_CALLBACK_ARGS) |
ca10883e DS |
71 | { |
72 | struct stream *s = NULL; | |
73 | struct interface *ifp = NULL; | |
74 | ||
75 | debugf(BABEL_DEBUG_IF, "receive a 'interface up'"); | |
76 | ||
77 | s = zclient->ibuf; | |
121f9dee | 78 | ifp = zebra_interface_state_read(s, vrf_id); /* it updates iflist */ |
ca10883e DS |
79 | |
80 | if (ifp == NULL) { | |
81 | return 0; | |
82 | } | |
83 | ||
84 | interface_recalculate(ifp); | |
85 | return 0; | |
86 | } | |
87 | ||
88 | int | |
121f9dee | 89 | babel_interface_down (ZAPI_CALLBACK_ARGS) |
ca10883e DS |
90 | { |
91 | struct stream *s = NULL; | |
92 | struct interface *ifp = NULL; | |
93 | ||
94 | debugf(BABEL_DEBUG_IF, "receive a 'interface down'"); | |
95 | ||
96 | s = zclient->ibuf; | |
121f9dee | 97 | ifp = zebra_interface_state_read(s, vrf_id); /* it updates iflist */ |
ca10883e DS |
98 | |
99 | if (ifp == NULL) { | |
100 | return 0; | |
101 | } | |
102 | ||
103 | interface_reset(ifp); | |
104 | return 0; | |
105 | } | |
106 | ||
107 | int | |
121f9dee | 108 | babel_interface_add (ZAPI_CALLBACK_ARGS) |
ca10883e DS |
109 | { |
110 | struct interface *ifp = NULL; | |
111 | ||
112 | debugf(BABEL_DEBUG_IF, "receive a 'interface add'"); | |
113 | ||
114 | /* read and add the interface in the iflist. */ | |
121f9dee | 115 | ifp = zebra_interface_add_read (zclient->ibuf, vrf_id); |
ca10883e DS |
116 | |
117 | if (ifp == NULL) { | |
118 | return 0; | |
119 | } | |
120 | ||
121 | interface_recalculate(ifp); | |
122 | return 0; | |
123 | } | |
124 | ||
125 | int | |
121f9dee | 126 | babel_interface_delete (ZAPI_CALLBACK_ARGS) |
ca10883e DS |
127 | { |
128 | struct interface *ifp; | |
129 | struct stream *s; | |
130 | ||
131 | debugf(BABEL_DEBUG_IF, "receive a 'interface delete'"); | |
132 | ||
133 | s = zclient->ibuf; | |
121f9dee | 134 | ifp = zebra_interface_state_read(s, vrf_id); /* it updates iflist */ |
ca10883e DS |
135 | |
136 | if (ifp == NULL) | |
137 | return 0; | |
138 | ||
139 | if (IS_ENABLE(ifp)) | |
140 | interface_reset(ifp); | |
141 | ||
142 | /* To support pseudo interface do not free interface structure. */ | |
143 | /* if_delete(ifp); */ | |
ff880b78 | 144 | if_set_index(ifp, IFINDEX_INTERNAL); |
ca10883e DS |
145 | |
146 | return 0; | |
147 | } | |
148 | ||
149 | int | |
121f9dee | 150 | babel_interface_address_add (ZAPI_CALLBACK_ARGS) |
ca10883e DS |
151 | { |
152 | babel_interface_nfo *babel_ifp; | |
153 | struct connected *ifc; | |
154 | struct prefix *prefix; | |
155 | ||
156 | debugf(BABEL_DEBUG_IF, "receive a 'interface address add'"); | |
157 | ||
158 | ifc = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_ADD, | |
121f9dee | 159 | zclient->ibuf, vrf_id); |
ca10883e DS |
160 | |
161 | if (ifc == NULL) | |
162 | return 0; | |
163 | ||
164 | prefix = ifc->address; | |
165 | ||
166 | if (prefix->family == AF_INET) { | |
167 | flush_interface_routes(ifc->ifp, 0); | |
168 | babel_ifp = babel_get_if_nfo(ifc->ifp); | |
169 | if (babel_ifp->ipv4 == NULL) { | |
170 | babel_ifp->ipv4 = malloc(4); | |
171 | if (babel_ifp->ipv4 == NULL) { | |
5b003f31 | 172 | flog_err(EC_BABEL_MEMORY, "not enough memory"); |
ca10883e DS |
173 | } else { |
174 | memcpy(babel_ifp->ipv4, &prefix->u.prefix4, 4); | |
175 | } | |
176 | } | |
177 | } | |
178 | ||
179 | send_request(ifc->ifp, NULL, 0); | |
180 | send_update(ifc->ifp, 0, NULL, 0); | |
181 | ||
182 | return 0; | |
183 | } | |
184 | ||
185 | int | |
121f9dee | 186 | babel_interface_address_delete (ZAPI_CALLBACK_ARGS) |
ca10883e DS |
187 | { |
188 | babel_interface_nfo *babel_ifp; | |
189 | struct connected *ifc; | |
190 | struct prefix *prefix; | |
191 | ||
192 | debugf(BABEL_DEBUG_IF, "receive a 'interface address delete'"); | |
193 | ||
194 | ifc = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_DELETE, | |
121f9dee | 195 | zclient->ibuf, vrf_id); |
ca10883e DS |
196 | |
197 | if (ifc == NULL) | |
198 | return 0; | |
199 | ||
200 | prefix = ifc->address; | |
201 | ||
202 | if (prefix->family == AF_INET) { | |
203 | flush_interface_routes(ifc->ifp, 0); | |
204 | babel_ifp = babel_get_if_nfo(ifc->ifp); | |
205 | if (babel_ifp->ipv4 != NULL | |
206 | && memcmp(babel_ifp->ipv4, &prefix->u.prefix4, 4) == 0) { | |
207 | free(babel_ifp->ipv4); | |
208 | babel_ifp->ipv4 = NULL; | |
209 | } | |
210 | } | |
211 | ||
212 | send_request(ifc->ifp, NULL, 0); | |
213 | send_update(ifc->ifp, 0, NULL, 0); | |
214 | ||
215 | return 0; | |
216 | } | |
217 | ||
218 | /* Lookup function. */ | |
219 | static int | |
220 | babel_enable_if_lookup (const char *ifname) | |
221 | { | |
222 | unsigned int i; | |
223 | char *str; | |
224 | ||
225 | for (i = 0; i < vector_active (babel_enable_if); i++) | |
226 | if ((str = vector_slot (babel_enable_if, i)) != NULL) | |
227 | if (strcmp (str, ifname) == 0) | |
228 | return i; | |
229 | return -1; | |
230 | } | |
231 | ||
232 | /* Add interface to babel_enable_if. */ | |
233 | static int | |
234 | babel_enable_if_add (const char *ifname) | |
235 | { | |
236 | int ret; | |
237 | struct interface *ifp = NULL; | |
238 | ||
239 | ret = babel_enable_if_lookup (ifname); | |
240 | if (ret >= 0) | |
241 | return -1; | |
242 | ||
243 | vector_set (babel_enable_if, strdup (ifname)); | |
244 | ||
a36898e7 | 245 | ifp = if_lookup_by_name(ifname, VRF_DEFAULT); |
ca10883e DS |
246 | if (ifp != NULL) |
247 | interface_recalculate(ifp); | |
248 | ||
249 | return 1; | |
250 | } | |
251 | ||
252 | /* Delete interface from babel_enable_if. */ | |
253 | static int | |
254 | babel_enable_if_delete (const char *ifname) | |
255 | { | |
256 | int babel_enable_if_index; | |
257 | char *str; | |
258 | struct interface *ifp = NULL; | |
259 | ||
260 | babel_enable_if_index = babel_enable_if_lookup (ifname); | |
261 | if (babel_enable_if_index < 0) | |
262 | return -1; | |
263 | ||
264 | str = vector_slot (babel_enable_if, babel_enable_if_index); | |
265 | free (str); | |
266 | vector_unset (babel_enable_if, babel_enable_if_index); | |
267 | ||
a36898e7 | 268 | ifp = if_lookup_by_name(ifname, VRF_DEFAULT); |
ca10883e DS |
269 | if (ifp != NULL) |
270 | interface_reset(ifp); | |
271 | ||
272 | return 1; | |
273 | } | |
274 | ||
275 | /* [Babel Command] Babel enable on specified interface or matched network. */ | |
276 | DEFUN (babel_network, | |
277 | babel_network_cmd, | |
278 | "network IF_OR_ADDR", | |
279 | "Enable Babel protocol on specified interface or network.\n" | |
f84d11d1 | 280 | "Interface or address\n") |
ca10883e DS |
281 | { |
282 | int ret; | |
283 | struct prefix p; | |
284 | ||
285 | ret = str2prefix (argv[1]->arg, &p); | |
286 | ||
287 | /* Given string is: */ | |
288 | if (ret) /* an IPv4 or v6 network */ | |
289 | return CMD_ERR_NO_MATCH; /* not implemented yet */ | |
290 | else /* an interface name */ | |
291 | ret = babel_enable_if_add (argv[1]->arg); | |
292 | ||
293 | if (ret < 0) { | |
5c7571d4 | 294 | vty_out (vty, "There is same network configuration %s\n", |
96ade3ed | 295 | argv[1]->arg); |
851fcbae | 296 | return CMD_WARNING; |
ca10883e DS |
297 | } |
298 | ||
299 | return CMD_SUCCESS; | |
300 | } | |
301 | ||
302 | /* [Babel Command] Babel enable on specified interface or matched network. */ | |
303 | DEFUN (no_babel_network, | |
304 | no_babel_network_cmd, | |
305 | "no network IF_OR_ADDR", | |
306 | NO_STR | |
307 | "Disable Babel protocol on specified interface or network.\n" | |
bd8d8973 | 308 | "Interface or address\n") |
ca10883e DS |
309 | { |
310 | int ret; | |
311 | struct prefix p; | |
312 | ||
313 | ret = str2prefix (argv[2]->arg, &p); | |
314 | ||
315 | /* Given string is: */ | |
316 | if (ret) /* an IPv4 or v6 network */ | |
317 | return CMD_ERR_NO_MATCH; /* not implemented yet */ | |
318 | else /* an interface name */ | |
319 | ret = babel_enable_if_delete (argv[2]->arg); | |
320 | ||
321 | if (ret < 0) { | |
5c7571d4 | 322 | vty_out (vty, "can't find network %s\n",argv[2]->arg); |
f1a05de9 | 323 | return CMD_WARNING_CONFIG_FAILED; |
ca10883e DS |
324 | } |
325 | ||
326 | return CMD_SUCCESS; | |
327 | } | |
328 | ||
329 | /* There are a number of interface parameters that must be changed when | |
330 | an interface becomes wired/wireless. In Quagga, they cannot be | |
331 | configured separately. */ | |
332 | ||
333 | static void | |
334 | babel_set_wired_internal(babel_interface_nfo *babel_ifp, int wired) | |
335 | { | |
336 | if(wired) { | |
337 | babel_ifp->flags |= BABEL_IF_WIRED; | |
338 | babel_ifp->flags |= BABEL_IF_SPLIT_HORIZON; | |
339 | babel_ifp->cost = BABEL_DEFAULT_RXCOST_WIRED; | |
340 | babel_ifp->channel = BABEL_IF_CHANNEL_NONINTERFERING; | |
341 | babel_ifp->flags &= ~BABEL_IF_LQ; | |
342 | } else { | |
343 | babel_ifp->flags &= ~BABEL_IF_WIRED; | |
344 | babel_ifp->flags &= ~BABEL_IF_SPLIT_HORIZON; | |
345 | babel_ifp->cost = BABEL_DEFAULT_RXCOST_WIRELESS; | |
346 | babel_ifp->channel = BABEL_IF_CHANNEL_INTERFERING; | |
347 | babel_ifp->flags |= BABEL_IF_LQ; | |
348 | } | |
349 | ||
350 | } | |
351 | ||
352 | /* [Interface Command] Tell the interface is wire. */ | |
353 | DEFUN (babel_set_wired, | |
354 | babel_set_wired_cmd, | |
355 | "babel wired", | |
356 | "Babel interface commands\n" | |
bd8d8973 | 357 | "Enable wired optimizations\n") |
ca10883e DS |
358 | { |
359 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
360 | babel_interface_nfo *babel_ifp; | |
361 | ||
362 | babel_ifp = babel_get_if_nfo(ifp); | |
363 | ||
364 | assert (babel_ifp != NULL); | |
365 | babel_set_wired_internal(babel_ifp, 1); | |
366 | return CMD_SUCCESS; | |
367 | } | |
368 | ||
369 | /* [Interface Command] Tell the interface is wireless (default). */ | |
370 | DEFUN (babel_set_wireless, | |
371 | babel_set_wireless_cmd, | |
372 | "babel wireless", | |
373 | "Babel interface commands\n" | |
bd8d8973 | 374 | "Disable wired optimizations (assume wireless)\n") |
ca10883e DS |
375 | { |
376 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
377 | babel_interface_nfo *babel_ifp; | |
378 | ||
379 | babel_ifp = babel_get_if_nfo(ifp); | |
380 | ||
381 | assert (babel_ifp != NULL); | |
382 | babel_set_wired_internal(babel_ifp, 0); | |
383 | return CMD_SUCCESS; | |
384 | } | |
385 | ||
386 | /* [Interface Command] Enable split horizon. */ | |
387 | DEFUN (babel_split_horizon, | |
388 | babel_split_horizon_cmd, | |
389 | "babel split-horizon", | |
390 | "Babel interface commands\n" | |
bd8d8973 | 391 | "Enable split horizon processing\n") |
ca10883e DS |
392 | { |
393 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
394 | babel_interface_nfo *babel_ifp; | |
395 | ||
396 | babel_ifp = babel_get_if_nfo(ifp); | |
397 | ||
398 | assert (babel_ifp != NULL); | |
399 | babel_ifp->flags |= BABEL_IF_SPLIT_HORIZON; | |
400 | return CMD_SUCCESS; | |
401 | } | |
402 | ||
403 | /* [Interface Command] Disable split horizon (default). */ | |
404 | DEFUN (no_babel_split_horizon, | |
405 | no_babel_split_horizon_cmd, | |
406 | "no babel split-horizon", | |
407 | NO_STR | |
408 | "Babel interface commands\n" | |
bd8d8973 | 409 | "Disable split horizon processing\n") |
ca10883e DS |
410 | { |
411 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
412 | babel_interface_nfo *babel_ifp; | |
413 | ||
414 | babel_ifp = babel_get_if_nfo(ifp); | |
415 | ||
416 | assert (babel_ifp != NULL); | |
417 | babel_ifp->flags &= ~BABEL_IF_SPLIT_HORIZON; | |
418 | return CMD_SUCCESS; | |
419 | } | |
420 | ||
421 | /* [Interface Command]. */ | |
422 | DEFUN (babel_set_hello_interval, | |
423 | babel_set_hello_interval_cmd, | |
424 | "babel hello-interval (20-655340)", | |
425 | "Babel interface commands\n" | |
426 | "Time between scheduled hellos\n" | |
427 | "Milliseconds\n") | |
428 | { | |
429 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
430 | babel_interface_nfo *babel_ifp; | |
431 | int interval; | |
432 | ||
facfee22 | 433 | interval = strtoul(argv[2]->arg, NULL, 10); |
ca10883e DS |
434 | |
435 | babel_ifp = babel_get_if_nfo(ifp); | |
436 | assert (babel_ifp != NULL); | |
437 | ||
438 | babel_ifp->hello_interval = interval; | |
439 | return CMD_SUCCESS; | |
440 | } | |
441 | ||
442 | /* [Interface Command]. */ | |
443 | DEFUN (babel_set_update_interval, | |
444 | babel_set_update_interval_cmd, | |
445 | "babel update-interval (20-655340)", | |
446 | "Babel interface commands\n" | |
447 | "Time between scheduled updates\n" | |
448 | "Milliseconds\n") | |
449 | { | |
450 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
451 | babel_interface_nfo *babel_ifp; | |
452 | int interval; | |
453 | ||
facfee22 | 454 | interval = strtoul(argv[2]->arg, NULL, 10); |
ca10883e DS |
455 | |
456 | babel_ifp = babel_get_if_nfo(ifp); | |
457 | assert (babel_ifp != NULL); | |
458 | ||
459 | babel_ifp->update_interval = interval; | |
460 | return CMD_SUCCESS; | |
461 | } | |
462 | ||
463 | DEFUN (babel_set_rxcost, | |
464 | babel_set_rxcost_cmd, | |
465 | "babel rxcost (1-65534)", | |
466 | "Babel interface commands\n" | |
467 | "Rxcost multiplier\n" | |
bd8d8973 | 468 | "Units\n") |
ca10883e DS |
469 | { |
470 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
471 | babel_interface_nfo *babel_ifp; | |
472 | int rxcost; | |
473 | ||
facfee22 | 474 | rxcost = strtoul(argv[2]->arg, NULL, 10); |
ca10883e DS |
475 | |
476 | babel_ifp = babel_get_if_nfo(ifp); | |
477 | assert (babel_ifp != NULL); | |
478 | ||
479 | babel_ifp->cost = rxcost; | |
480 | return CMD_SUCCESS; | |
481 | } | |
482 | ||
483 | DEFUN (babel_set_rtt_decay, | |
484 | babel_set_rtt_decay_cmd, | |
485 | "babel rtt-decay (1-256)", | |
486 | "Babel interface commands\n" | |
487 | "Decay factor for exponential moving average of RTT samples\n" | |
bd8d8973 | 488 | "Units of 1/256\n") |
ca10883e DS |
489 | { |
490 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
491 | babel_interface_nfo *babel_ifp; | |
492 | int decay; | |
493 | ||
facfee22 | 494 | decay = strtoul(argv[2]->arg, NULL, 10); |
ca10883e DS |
495 | |
496 | babel_ifp = babel_get_if_nfo(ifp); | |
497 | assert (babel_ifp != NULL); | |
498 | ||
499 | babel_ifp->rtt_decay = decay; | |
500 | return CMD_SUCCESS; | |
501 | } | |
502 | ||
503 | DEFUN (babel_set_rtt_min, | |
504 | babel_set_rtt_min_cmd, | |
505 | "babel rtt-min (1-65535)", | |
506 | "Babel interface commands\n" | |
507 | "Minimum RTT starting for increasing cost\n" | |
bd8d8973 | 508 | "Milliseconds\n") |
ca10883e DS |
509 | { |
510 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
511 | babel_interface_nfo *babel_ifp; | |
512 | int rtt; | |
513 | ||
facfee22 | 514 | rtt = strtoul(argv[2]->arg, NULL, 10); |
ca10883e DS |
515 | |
516 | babel_ifp = babel_get_if_nfo(ifp); | |
517 | assert (babel_ifp != NULL); | |
518 | ||
519 | babel_ifp->rtt_min = rtt; | |
520 | return CMD_SUCCESS; | |
521 | } | |
522 | ||
523 | DEFUN (babel_set_rtt_max, | |
524 | babel_set_rtt_max_cmd, | |
525 | "babel rtt-max (1-65535)", | |
526 | "Babel interface commands\n" | |
527 | "Maximum RTT\n" | |
bd8d8973 | 528 | "Milliseconds\n") |
ca10883e DS |
529 | { |
530 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
531 | babel_interface_nfo *babel_ifp; | |
532 | int rtt; | |
533 | ||
facfee22 | 534 | rtt = strtoul(argv[2]->arg, NULL, 10); |
ca10883e DS |
535 | |
536 | babel_ifp = babel_get_if_nfo(ifp); | |
537 | assert (babel_ifp != NULL); | |
538 | ||
539 | babel_ifp->rtt_max = rtt; | |
540 | return CMD_SUCCESS; | |
541 | } | |
542 | ||
543 | DEFUN (babel_set_max_rtt_penalty, | |
544 | babel_set_max_rtt_penalty_cmd, | |
545 | "babel max-rtt-penalty (0-65535)", | |
546 | "Babel interface commands\n" | |
547 | "Maximum additional cost due to RTT\n" | |
bd8d8973 | 548 | "Milliseconds\n") |
ca10883e DS |
549 | { |
550 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
551 | babel_interface_nfo *babel_ifp; | |
552 | int penalty; | |
553 | ||
facfee22 | 554 | penalty = strtoul(argv[2]->arg, NULL, 10); |
ca10883e DS |
555 | |
556 | babel_ifp = babel_get_if_nfo(ifp); | |
557 | assert (babel_ifp != NULL); | |
558 | ||
559 | babel_ifp->max_rtt_penalty = penalty; | |
560 | return CMD_SUCCESS; | |
561 | } | |
562 | ||
563 | DEFUN (babel_set_enable_timestamps, | |
564 | babel_set_enable_timestamps_cmd, | |
565 | "babel enable-timestamps", | |
566 | "Babel interface commands\n" | |
bd8d8973 | 567 | "Enable timestamps\n") |
ca10883e DS |
568 | { |
569 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
570 | babel_interface_nfo *babel_ifp; | |
571 | ||
572 | babel_ifp = babel_get_if_nfo(ifp); | |
573 | assert (babel_ifp != NULL); | |
574 | ||
575 | babel_ifp->flags |= BABEL_IF_TIMESTAMPS; | |
576 | return CMD_SUCCESS; | |
577 | } | |
578 | ||
579 | DEFUN (no_babel_set_enable_timestamps, | |
580 | no_babel_set_enable_timestamps_cmd, | |
581 | "no babel enable-timestamps", | |
bd8d8973 | 582 | NO_STR |
ca10883e | 583 | "Babel interface commands\n" |
bd8d8973 | 584 | "Disable timestamps\n") |
ca10883e DS |
585 | { |
586 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
587 | babel_interface_nfo *babel_ifp; | |
588 | ||
589 | babel_ifp = babel_get_if_nfo(ifp); | |
590 | assert (babel_ifp != NULL); | |
591 | ||
592 | babel_ifp->flags &= ~BABEL_IF_TIMESTAMPS; | |
593 | return CMD_SUCCESS; | |
594 | } | |
595 | ||
596 | DEFUN (babel_set_channel, | |
597 | babel_set_channel_cmd, | |
598 | "babel channel (1-254)", | |
599 | "Babel interface commands\n" | |
600 | "Channel number for diversity routing\n" | |
bd8d8973 | 601 | "Number\n") |
ca10883e DS |
602 | { |
603 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
604 | babel_interface_nfo *babel_ifp; | |
605 | int channel; | |
606 | ||
facfee22 | 607 | channel = strtoul(argv[2]->arg, NULL, 10); |
ca10883e DS |
608 | |
609 | babel_ifp = babel_get_if_nfo(ifp); | |
610 | assert (babel_ifp != NULL); | |
611 | ||
612 | babel_ifp->channel = channel; | |
613 | return CMD_SUCCESS; | |
614 | } | |
615 | ||
616 | DEFUN (babel_set_channel_interfering, | |
617 | babel_set_channel_interfering_cmd, | |
618 | "babel channel interfering", | |
619 | "Babel interface commands\n" | |
620 | "Channel number for diversity routing\n" | |
bd8d8973 | 621 | "Mark channel as interfering\n") |
ca10883e DS |
622 | { |
623 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
624 | babel_interface_nfo *babel_ifp; | |
625 | ||
626 | babel_ifp = babel_get_if_nfo(ifp); | |
627 | assert (babel_ifp != NULL); | |
628 | ||
629 | babel_ifp->channel = BABEL_IF_CHANNEL_INTERFERING; | |
630 | return CMD_SUCCESS; | |
631 | } | |
632 | ||
633 | DEFUN (babel_set_channel_noninterfering, | |
634 | babel_set_channel_noninterfering_cmd, | |
635 | "babel channel noninterfering", | |
636 | "Babel interface commands\n" | |
637 | "Channel number for diversity routing\n" | |
bd8d8973 | 638 | "Mark channel as noninterfering\n") |
ca10883e DS |
639 | { |
640 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
641 | babel_interface_nfo *babel_ifp; | |
642 | ||
643 | babel_ifp = babel_get_if_nfo(ifp); | |
644 | assert (babel_ifp != NULL); | |
645 | ||
646 | babel_ifp->channel = BABEL_IF_CHANNEL_NONINTERFERING; | |
647 | return CMD_SUCCESS; | |
648 | } | |
649 | ||
650 | /* This should be no more than half the hello interval, so that hellos | |
651 | aren't sent late. The result is in milliseconds. */ | |
652 | unsigned | |
653 | jitter(babel_interface_nfo *babel_ifp, int urgent) | |
654 | { | |
655 | unsigned interval = babel_ifp->hello_interval; | |
656 | if(urgent) | |
657 | interval = MIN(interval, 100); | |
658 | else | |
659 | interval = MIN(interval, 4000); | |
660 | return roughly(interval) / 4; | |
661 | } | |
662 | ||
663 | unsigned | |
664 | update_jitter(babel_interface_nfo *babel_ifp, int urgent) | |
665 | { | |
666 | unsigned interval = babel_ifp->hello_interval; | |
667 | if(urgent) | |
668 | interval = MIN(interval, 100); | |
669 | else | |
670 | interval = MIN(interval, 4000); | |
671 | return roughly(interval); | |
672 | } | |
673 | ||
674 | /* calculate babeld's specific datas of an interface (change when the interface | |
675 | change) */ | |
676 | static int | |
677 | interface_recalculate(struct interface *ifp) | |
678 | { | |
679 | babel_interface_nfo *babel_ifp = babel_get_if_nfo(ifp); | |
680 | unsigned char *tmp = NULL; | |
681 | int mtu, rc; | |
682 | struct ipv6_mreq mreq; | |
683 | ||
684 | if (!IS_ENABLE(ifp)) | |
685 | return -1; | |
686 | ||
687 | if (!if_is_operative(ifp) || !CHECK_FLAG(ifp->flags, IFF_RUNNING)) { | |
688 | interface_reset(ifp); | |
689 | return -1; | |
690 | } | |
691 | ||
692 | babel_ifp->flags |= BABEL_IF_IS_UP; | |
693 | ||
694 | mtu = MIN(ifp->mtu, ifp->mtu6); | |
695 | ||
696 | /* We need to be able to fit at least two messages into a packet, | |
697 | so MTUs below 116 require lower layer fragmentation. */ | |
698 | /* In IPv6, the minimum MTU is 1280, and every host must be able | |
699 | to reassemble up to 1500 bytes, but I'd rather not rely on this. */ | |
700 | if(mtu < 128) { | |
701 | debugf(BABEL_DEBUG_IF, "Suspiciously low MTU %d on interface %s (%d).", | |
702 | mtu, ifp->name, ifp->ifindex); | |
703 | mtu = 128; | |
704 | } | |
705 | ||
706 | /* 4 for Babel header; 40 for IPv6 header, 8 for UDP header, 12 for good luck. */ | |
707 | babel_ifp->bufsize = mtu - 4 - 60; | |
708 | tmp = babel_ifp->sendbuf; | |
709 | babel_ifp->sendbuf = realloc(babel_ifp->sendbuf, babel_ifp->bufsize); | |
710 | if(babel_ifp->sendbuf == NULL) { | |
5b003f31 | 711 | flog_err(EC_BABEL_MEMORY, "Couldn't reallocate sendbuf."); |
ca10883e DS |
712 | free(tmp); |
713 | babel_ifp->bufsize = 0; | |
714 | return -1; | |
715 | } | |
716 | tmp = NULL; | |
717 | ||
718 | rc = resize_receive_buffer(mtu); | |
719 | if(rc < 0) | |
720 | zlog_warn("couldn't resize " | |
721 | "receive buffer for interface %s (%d) (%d bytes).\n", | |
722 | ifp->name, ifp->ifindex, mtu); | |
723 | ||
724 | memset(&mreq, 0, sizeof(mreq)); | |
725 | memcpy(&mreq.ipv6mr_multiaddr, protocol_group, 16); | |
726 | mreq.ipv6mr_interface = ifp->ifindex; | |
727 | ||
728 | rc = setsockopt(protocol_socket, IPPROTO_IPV6, IPV6_JOIN_GROUP, | |
729 | (char*)&mreq, sizeof(mreq)); | |
730 | if(rc < 0) { | |
450971aa | 731 | flog_err_sys(EC_LIB_SOCKET, |
f135ba52 DS |
732 | "setsockopt(IPV6_JOIN_GROUP) on interface '%s': %s", |
733 | ifp->name, safe_strerror(errno)); | |
ca10883e DS |
734 | /* This is probably due to a missing link-local address, |
735 | so down this interface, and wait until the main loop | |
736 | tries to up it again. */ | |
737 | interface_reset(ifp); | |
738 | return -1; | |
739 | } | |
740 | ||
741 | set_timeout(&babel_ifp->hello_timeout, babel_ifp->hello_interval); | |
742 | set_timeout(&babel_ifp->update_timeout, babel_ifp->update_interval); | |
743 | send_hello(ifp); | |
744 | send_request(ifp, NULL, 0); | |
745 | ||
746 | update_interface_metric(ifp); | |
747 | ||
748 | debugf(BABEL_DEBUG_COMMON, | |
749 | "Upped interface %s (%s, cost=%d, channel=%d%s).", | |
750 | ifp->name, | |
751 | (babel_ifp->flags & BABEL_IF_WIRED) ? "wired" : "wireless", | |
752 | babel_ifp->cost, | |
753 | babel_ifp->channel, | |
754 | babel_ifp->ipv4 ? ", IPv4" : ""); | |
755 | ||
756 | if(rc > 0) | |
757 | send_update(ifp, 0, NULL, 0); | |
758 | ||
759 | return 1; | |
760 | } | |
761 | ||
762 | /* Reset the interface as it was new: it's not removed from the interface list, | |
763 | and may be considered as a upped interface. */ | |
764 | static int | |
765 | interface_reset(struct interface *ifp) | |
766 | { | |
767 | int rc; | |
768 | struct ipv6_mreq mreq; | |
769 | babel_interface_nfo *babel_ifp = babel_get_if_nfo(ifp); | |
770 | ||
771 | if (!(babel_ifp->flags & BABEL_IF_IS_UP)) | |
772 | return 0; | |
773 | ||
774 | debugf(BABEL_DEBUG_IF, "interface reset: %s", ifp->name); | |
775 | babel_ifp->flags &= ~BABEL_IF_IS_UP; | |
776 | ||
777 | flush_interface_routes(ifp, 0); | |
778 | babel_ifp->buffered = 0; | |
779 | babel_ifp->bufsize = 0; | |
780 | free(babel_ifp->sendbuf); | |
781 | babel_ifp->num_buffered_updates = 0; | |
782 | babel_ifp->update_bufsize = 0; | |
783 | if(babel_ifp->buffered_updates) | |
784 | free(babel_ifp->buffered_updates); | |
785 | babel_ifp->buffered_updates = NULL; | |
786 | babel_ifp->sendbuf = NULL; | |
787 | ||
788 | if(ifp->ifindex > 0) { | |
789 | memset(&mreq, 0, sizeof(mreq)); | |
790 | memcpy(&mreq.ipv6mr_multiaddr, protocol_group, 16); | |
791 | mreq.ipv6mr_interface = ifp->ifindex; | |
792 | rc = setsockopt(protocol_socket, IPPROTO_IPV6, IPV6_LEAVE_GROUP, | |
793 | (char*)&mreq, sizeof(mreq)); | |
794 | if(rc < 0) | |
450971aa | 795 | flog_err_sys(EC_LIB_SOCKET, |
f135ba52 DS |
796 | "setsockopt(IPV6_LEAVE_GROUP) on interface '%s': %s", |
797 | ifp->name, safe_strerror(errno)); | |
ca10883e DS |
798 | } |
799 | ||
800 | update_interface_metric(ifp); | |
801 | ||
802 | debugf(BABEL_DEBUG_COMMON,"Upped network %s (%s, cost=%d%s).", | |
803 | ifp->name, | |
804 | (babel_ifp->flags & BABEL_IF_WIRED) ? "wired" : "wireless", | |
805 | babel_ifp->cost, | |
806 | babel_ifp->ipv4 ? ", IPv4" : ""); | |
807 | ||
808 | return 1; | |
809 | } | |
810 | ||
811 | /* Send retraction to all, and reset all interfaces statistics. */ | |
812 | void | |
813 | babel_interface_close_all(void) | |
814 | { | |
f4e14fdb | 815 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
ca10883e | 816 | struct interface *ifp = NULL; |
ca10883e | 817 | |
f4e14fdb | 818 | FOR_ALL_INTERFACES(vrf, ifp) { |
ca10883e DS |
819 | if(!if_up(ifp)) |
820 | continue; | |
821 | send_wildcard_retraction(ifp); | |
822 | /* Make sure that we expire quickly from our neighbours' | |
823 | association caches. */ | |
824 | send_hello_noupdate(ifp, 10); | |
825 | flushbuf(ifp); | |
826 | usleep(roughly(1000)); | |
827 | gettime(&babel_now); | |
828 | } | |
f4e14fdb | 829 | FOR_ALL_INTERFACES(vrf, ifp) { |
ca10883e DS |
830 | if(!if_up(ifp)) |
831 | continue; | |
832 | /* Make sure they got it. */ | |
833 | send_wildcard_retraction(ifp); | |
834 | send_hello_noupdate(ifp, 1); | |
835 | flushbuf(ifp); | |
836 | usleep(roughly(10000)); | |
837 | gettime(&babel_now); | |
838 | interface_reset(ifp); | |
839 | } | |
840 | } | |
841 | ||
842 | /* return "true" if address is one of our ipv6 addresses */ | |
843 | int | |
844 | is_interface_ll_address(struct interface *ifp, const unsigned char *address) | |
845 | { | |
846 | struct connected *connected; | |
847 | struct listnode *node; | |
848 | ||
849 | if(!if_up(ifp)) | |
850 | return 0; | |
851 | ||
852 | FOR_ALL_INTERFACES_ADDRESSES(ifp, connected, node) { | |
853 | if(connected->address->family == AF_INET6 && | |
854 | memcmp(&connected->address->u.prefix6, address, 16) == 0) | |
855 | return 1; | |
856 | } | |
857 | ||
858 | return 0; | |
859 | } | |
860 | ||
861 | static void | |
862 | show_babel_interface_sub (struct vty *vty, struct interface *ifp) | |
863 | { | |
864 | int is_up; | |
865 | babel_interface_nfo *babel_ifp; | |
866 | ||
5c7571d4 | 867 | vty_out (vty, "%s is %s\n", ifp->name, |
96ade3ed | 868 | ((is_up = if_is_operative(ifp)) ? "up" : "down")); |
5c7571d4 | 869 | vty_out (vty, " ifindex %u, MTU %u bytes %s\n", |
96ade3ed | 870 | ifp->ifindex, MIN(ifp->mtu, ifp->mtu6), if_flag_dump(ifp->flags)); |
ca10883e DS |
871 | |
872 | if (!IS_ENABLE(ifp)) | |
873 | { | |
5c7571d4 | 874 | vty_out (vty, " Babel protocol is not enabled on this interface\n"); |
ca10883e DS |
875 | return; |
876 | } | |
877 | if (!is_up) | |
878 | { | |
5c7571d4 DL |
879 | vty_out (vty, |
880 | " Babel protocol is enabled, but not running on this interface\n"); | |
ca10883e DS |
881 | return; |
882 | } | |
883 | babel_ifp = babel_get_if_nfo (ifp); | |
5c7571d4 | 884 | vty_out (vty, " Babel protocol is running on this interface\n"); |
181039f3 | 885 | vty_out (vty, " Operating mode is \"%s\"\n", |
96ade3ed | 886 | CHECK_FLAG(babel_ifp->flags, BABEL_IF_WIRED) ? "wired" : "wireless"); |
5c7571d4 | 887 | vty_out (vty, " Split horizon mode is %s\n", |
96ade3ed | 888 | CHECK_FLAG(babel_ifp->flags, BABEL_IF_SPLIT_HORIZON) ? "On" : "Off"); |
5c7571d4 DL |
889 | vty_out (vty, " Hello interval is %u ms\n", babel_ifp->hello_interval); |
890 | vty_out (vty, " Update interval is %u ms\n", babel_ifp->update_interval); | |
891 | vty_out (vty, " Rxcost multiplier is %u\n", babel_ifp->cost); | |
ca10883e DS |
892 | } |
893 | ||
894 | DEFUN (show_babel_interface, | |
895 | show_babel_interface_cmd, | |
896 | "show babel interface [IFNAME]", | |
897 | SHOW_STR | |
898 | "Babel information\n" | |
899 | "Interface information\n" | |
900 | "Interface\n") | |
901 | { | |
f4e14fdb | 902 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
ca10883e | 903 | struct interface *ifp; |
ca10883e DS |
904 | |
905 | if (argc == 3) | |
906 | { | |
451fda4f | 907 | FOR_ALL_INTERFACES (vrf, ifp) |
ca10883e DS |
908 | show_babel_interface_sub (vty, ifp); |
909 | return CMD_SUCCESS; | |
910 | } | |
a36898e7 | 911 | if ((ifp = if_lookup_by_name (argv[3]->arg, VRF_DEFAULT)) == NULL) |
ca10883e | 912 | { |
5c7571d4 | 913 | vty_out (vty, "No such interface name\n"); |
ca10883e DS |
914 | return CMD_WARNING; |
915 | } | |
916 | show_babel_interface_sub (vty, ifp); | |
917 | return CMD_SUCCESS; | |
918 | } | |
919 | ||
920 | static void | |
921 | show_babel_neighbour_sub (struct vty *vty, struct neighbour *neigh) | |
922 | { | |
181039f3 | 923 | vty_out (vty, |
ca10883e | 924 | "Neighbour %s dev %s reach %04x rxcost %d txcost %d " |
181039f3 | 925 | "rtt %s rttcost %d%s.\n", |
ca10883e DS |
926 | format_address(neigh->address), |
927 | neigh->ifp->name, | |
928 | neigh->reach, | |
929 | neighbour_rxcost(neigh), | |
930 | neigh->txcost, | |
931 | format_thousands(neigh->rtt), | |
932 | neighbour_rttcost(neigh), | |
96ade3ed | 933 | if_up(neigh->ifp) ? "" : " (down)"); |
ca10883e DS |
934 | } |
935 | ||
936 | DEFUN (show_babel_neighbour, | |
937 | show_babel_neighbour_cmd, | |
938 | "show babel neighbor [IFNAME]", | |
939 | SHOW_STR | |
940 | "Babel information\n" | |
941 | "Print neighbors\n" | |
942 | "Interface\n") | |
943 | { | |
944 | struct neighbour *neigh; | |
945 | struct interface *ifp; | |
946 | ||
947 | if (argc == 3) { | |
948 | FOR_ALL_NEIGHBOURS(neigh) { | |
949 | show_babel_neighbour_sub(vty, neigh); | |
950 | } | |
951 | return CMD_SUCCESS; | |
952 | } | |
a36898e7 | 953 | if ((ifp = if_lookup_by_name (argv[3]->arg, VRF_DEFAULT)) == NULL) |
ca10883e | 954 | { |
5c7571d4 | 955 | vty_out (vty, "No such interface name\n"); |
ca10883e DS |
956 | return CMD_WARNING; |
957 | } | |
958 | FOR_ALL_NEIGHBOURS(neigh) { | |
959 | if(ifp->ifindex == neigh->ifp->ifindex) { | |
960 | show_babel_neighbour_sub(vty, neigh); | |
961 | } | |
962 | } | |
963 | return CMD_SUCCESS; | |
964 | } | |
965 | ||
966 | static int | |
967 | babel_prefix_eq(struct prefix *prefix, unsigned char *p, int plen) | |
968 | { | |
969 | if(prefix->family == AF_INET6) { | |
970 | if(prefix->prefixlen != plen || | |
971 | memcmp(&prefix->u.prefix6, p, 16) != 0) | |
972 | return 0; | |
973 | } else if(prefix->family == AF_INET) { | |
974 | if(plen < 96 || !v4mapped(p) || prefix->prefixlen != plen - 96 || | |
975 | memcmp(&prefix->u.prefix4, p + 12, 4) != 0) | |
976 | return 0; | |
977 | } else { | |
978 | return 0; | |
979 | } | |
980 | ||
981 | return 1; | |
982 | } | |
983 | ||
984 | static void | |
985 | show_babel_routes_sub(struct babel_route *route, struct vty *vty, | |
986 | struct prefix *prefix) | |
987 | { | |
988 | const unsigned char *nexthop = | |
989 | memcmp(route->nexthop, route->neigh->address, 16) == 0 ? | |
990 | NULL : route->nexthop; | |
991 | char channels[100]; | |
992 | ||
993 | if(prefix && !babel_prefix_eq(prefix, route->src->prefix, route->src->plen)) | |
994 | return; | |
995 | ||
996 | if(route->channels[0] == 0) | |
997 | channels[0] = '\0'; | |
998 | else { | |
999 | int k, j = 0; | |
1000 | snprintf(channels, 100, " chan ("); | |
1001 | j = strlen(channels); | |
1002 | for(k = 0; k < DIVERSITY_HOPS; k++) { | |
1003 | if(route->channels[k] == 0) | |
1004 | break; | |
1005 | if(k > 0) | |
1006 | channels[j++] = ','; | |
2ec42b85 | 1007 | snprintf(channels + j, 100 - j, "%u", route->channels[k]); |
ca10883e DS |
1008 | j = strlen(channels); |
1009 | } | |
1010 | snprintf(channels + j, 100 - j, ")"); | |
1011 | if(k == 0) | |
1012 | channels[0] = '\0'; | |
1013 | } | |
1014 | ||
181039f3 | 1015 | vty_out (vty, |
ca10883e | 1016 | "%s metric %d refmetric %d id %s seqno %d%s age %d " |
181039f3 | 1017 | "via %s neigh %s%s%s%s\n", |
ca10883e DS |
1018 | format_prefix(route->src->prefix, route->src->plen), |
1019 | route_metric(route), route->refmetric, | |
1020 | format_eui64(route->src->id), | |
1021 | (int)route->seqno, | |
1022 | channels, | |
1023 | (int)(babel_now.tv_sec - route->time), | |
1024 | route->neigh->ifp->name, | |
1025 | format_address(route->neigh->address), | |
1026 | nexthop ? " nexthop " : "", | |
1027 | nexthop ? format_address(nexthop) : "", | |
96ade3ed | 1028 | route->installed ? " (installed)" : route_feasible(route) ? " (feasible)" : ""); |
ca10883e DS |
1029 | } |
1030 | ||
1031 | static void | |
1032 | show_babel_xroutes_sub (struct xroute *xroute, struct vty *vty, | |
1033 | struct prefix *prefix) | |
1034 | { | |
1035 | if(prefix && !babel_prefix_eq(prefix, xroute->prefix, xroute->plen)) | |
1036 | return; | |
1037 | ||
5c7571d4 | 1038 | vty_out (vty, "%s metric %d (exported)\n", |
ca10883e | 1039 | format_prefix(xroute->prefix, xroute->plen), |
96ade3ed | 1040 | xroute->metric); |
ca10883e DS |
1041 | } |
1042 | ||
1043 | DEFUN (show_babel_route, | |
1044 | show_babel_route_cmd, | |
1045 | "show babel route", | |
1046 | SHOW_STR | |
1047 | "Babel information\n" | |
1048 | "Babel internal routing table\n") | |
1049 | { | |
1050 | struct route_stream *routes = NULL; | |
1051 | struct xroute_stream *xroutes = NULL; | |
1052 | routes = route_stream(0); | |
1053 | if(routes) { | |
1054 | while(1) { | |
1055 | struct babel_route *route = route_stream_next(routes); | |
1056 | if(route == NULL) | |
1057 | break; | |
1058 | show_babel_routes_sub(route, vty, NULL); | |
1059 | } | |
1060 | route_stream_done(routes); | |
1061 | } else { | |
5b003f31 | 1062 | flog_err(EC_BABEL_MEMORY, "Couldn't allocate route stream."); |
ca10883e | 1063 | } |
dd15627e | 1064 | xroutes = xroute_stream(); |
ca10883e DS |
1065 | if(xroutes) { |
1066 | while(1) { | |
1067 | struct xroute *xroute = xroute_stream_next(xroutes); | |
1068 | if(xroute == NULL) | |
1069 | break; | |
1070 | show_babel_xroutes_sub(xroute, vty, NULL); | |
1071 | } | |
1072 | xroute_stream_done(xroutes); | |
1073 | } else { | |
5b003f31 | 1074 | flog_err(EC_BABEL_MEMORY, "Couldn't allocate route stream."); |
ca10883e DS |
1075 | } |
1076 | return CMD_SUCCESS; | |
1077 | } | |
1078 | ||
1079 | DEFUN (show_babel_route_prefix, | |
1080 | show_babel_route_prefix_cmd, | |
1081 | "show babel route <A.B.C.D/M|X:X::X:X/M>", | |
1082 | SHOW_STR | |
1083 | "Babel information\n" | |
f7bf422e | 1084 | "Babel internal routing table\n" |
ca10883e DS |
1085 | "IPv4 prefix <network>/<length>\n" |
1086 | "IPv6 prefix <network>/<length>\n") | |
1087 | { | |
1088 | struct route_stream *routes = NULL; | |
1089 | struct xroute_stream *xroutes = NULL; | |
1090 | struct prefix prefix; | |
1091 | int ret; | |
1092 | ||
1093 | ret = str2prefix(argv[3]->arg, &prefix); | |
1094 | if(ret == 0) { | |
5c7571d4 | 1095 | vty_out (vty, "%% Malformed address\n"); |
ca10883e DS |
1096 | return CMD_WARNING; |
1097 | } | |
1098 | ||
1099 | routes = route_stream(0); | |
1100 | if(routes) { | |
1101 | while(1) { | |
1102 | struct babel_route *route = route_stream_next(routes); | |
1103 | if(route == NULL) | |
1104 | break; | |
1105 | show_babel_routes_sub(route, vty, &prefix); | |
1106 | } | |
1107 | route_stream_done(routes); | |
1108 | } else { | |
5b003f31 | 1109 | flog_err(EC_BABEL_MEMORY, "Couldn't allocate route stream."); |
ca10883e | 1110 | } |
dd15627e | 1111 | xroutes = xroute_stream(); |
ca10883e DS |
1112 | if(xroutes) { |
1113 | while(1) { | |
1114 | struct xroute *xroute = xroute_stream_next(xroutes); | |
1115 | if(xroute == NULL) | |
1116 | break; | |
1117 | show_babel_xroutes_sub(xroute, vty, &prefix); | |
1118 | } | |
1119 | xroute_stream_done(xroutes); | |
1120 | } else { | |
5b003f31 | 1121 | flog_err(EC_BABEL_MEMORY, "Couldn't allocate route stream."); |
ca10883e DS |
1122 | } |
1123 | return CMD_SUCCESS; | |
1124 | } | |
1125 | ||
1126 | ||
1127 | DEFUN (show_babel_route_addr, | |
1128 | show_babel_route_addr_cmd, | |
1129 | "show babel route A.B.C.D", | |
1130 | SHOW_STR | |
1131 | "Babel information\n" | |
f7bf422e | 1132 | "Babel internal routing table\n" |
ca10883e DS |
1133 | "IPv4 address <network>/<length>\n") |
1134 | { | |
1135 | struct in_addr addr; | |
1136 | char buf[INET_ADDRSTRLEN + 8]; | |
1137 | struct route_stream *routes = NULL; | |
1138 | struct xroute_stream *xroutes = NULL; | |
1139 | struct prefix prefix; | |
1140 | int ret; | |
1141 | ||
1142 | ret = inet_aton (argv[3]->arg, &addr); | |
1143 | if (ret <= 0) { | |
5c7571d4 | 1144 | vty_out (vty, "%% Malformed address\n"); |
ca10883e DS |
1145 | return CMD_WARNING; |
1146 | } | |
1147 | ||
1148 | /* Quagga has no convenient prefix constructors. */ | |
1149 | snprintf(buf, sizeof(buf), "%s/%d", inet_ntoa(addr), 32); | |
1150 | ||
1151 | ret = str2prefix(buf, &prefix); | |
1152 | if (ret == 0) { | |
5c7571d4 | 1153 | vty_out (vty, "%% Parse error -- this shouldn't happen\n"); |
ca10883e DS |
1154 | return CMD_WARNING; |
1155 | } | |
1156 | ||
1157 | routes = route_stream(0); | |
1158 | if(routes) { | |
1159 | while(1) { | |
1160 | struct babel_route *route = route_stream_next(routes); | |
1161 | if(route == NULL) | |
1162 | break; | |
1163 | show_babel_routes_sub(route, vty, &prefix); | |
1164 | } | |
1165 | route_stream_done(routes); | |
1166 | } else { | |
5b003f31 | 1167 | flog_err(EC_BABEL_MEMORY, "Couldn't allocate route stream."); |
ca10883e | 1168 | } |
dd15627e | 1169 | xroutes = xroute_stream(); |
ca10883e DS |
1170 | if(xroutes) { |
1171 | while(1) { | |
1172 | struct xroute *xroute = xroute_stream_next(xroutes); | |
1173 | if(xroute == NULL) | |
1174 | break; | |
1175 | show_babel_xroutes_sub(xroute, vty, &prefix); | |
1176 | } | |
1177 | xroute_stream_done(xroutes); | |
1178 | } else { | |
5b003f31 | 1179 | flog_err(EC_BABEL_MEMORY, "Couldn't allocate route stream."); |
ca10883e DS |
1180 | } |
1181 | return CMD_SUCCESS; | |
1182 | } | |
1183 | ||
1184 | DEFUN (show_babel_route_addr6, | |
1185 | show_babel_route_addr6_cmd, | |
1186 | "show babel route X:X::X:X", | |
1187 | SHOW_STR | |
1188 | "Babel information\n" | |
f7bf422e | 1189 | "Babel internal routing table\n" |
ca10883e DS |
1190 | "IPv6 address <network>/<length>\n") |
1191 | { | |
1192 | struct in6_addr addr; | |
1193 | char buf1[INET6_ADDRSTRLEN]; | |
1194 | char buf[INET6_ADDRSTRLEN + 8]; | |
1195 | struct route_stream *routes = NULL; | |
1196 | struct xroute_stream *xroutes = NULL; | |
1197 | struct prefix prefix; | |
1198 | int ret; | |
1199 | ||
1200 | ret = inet_pton (AF_INET6, argv[3]->arg, &addr); | |
1201 | if (ret <= 0) { | |
5c7571d4 | 1202 | vty_out (vty, "%% Malformed address\n"); |
ca10883e DS |
1203 | return CMD_WARNING; |
1204 | } | |
1205 | ||
1206 | /* Quagga has no convenient prefix constructors. */ | |
1207 | snprintf(buf, sizeof(buf), "%s/%d", | |
1208 | inet_ntop(AF_INET6, &addr, buf1, sizeof(buf1)), 128); | |
1209 | ||
1210 | ret = str2prefix(buf, &prefix); | |
1211 | if (ret == 0) { | |
5c7571d4 | 1212 | vty_out (vty, "%% Parse error -- this shouldn't happen\n"); |
ca10883e DS |
1213 | return CMD_WARNING; |
1214 | } | |
1215 | ||
1216 | routes = route_stream(0); | |
1217 | if(routes) { | |
1218 | while(1) { | |
1219 | struct babel_route *route = route_stream_next(routes); | |
1220 | if(route == NULL) | |
1221 | break; | |
1222 | show_babel_routes_sub(route, vty, &prefix); | |
1223 | } | |
1224 | route_stream_done(routes); | |
1225 | } else { | |
5b003f31 | 1226 | flog_err(EC_BABEL_MEMORY, "Couldn't allocate route stream."); |
ca10883e | 1227 | } |
dd15627e | 1228 | xroutes = xroute_stream(); |
ca10883e DS |
1229 | if(xroutes) { |
1230 | while(1) { | |
1231 | struct xroute *xroute = xroute_stream_next(xroutes); | |
1232 | if(xroute == NULL) | |
1233 | break; | |
1234 | show_babel_xroutes_sub(xroute, vty, &prefix); | |
1235 | } | |
1236 | xroute_stream_done(xroutes); | |
1237 | } else { | |
5b003f31 | 1238 | flog_err(EC_BABEL_MEMORY, "Couldn't allocate route stream."); |
ca10883e DS |
1239 | } |
1240 | return CMD_SUCCESS; | |
1241 | } | |
1242 | ||
1243 | DEFUN (show_babel_parameters, | |
1244 | show_babel_parameters_cmd, | |
1245 | "show babel parameters", | |
1246 | SHOW_STR | |
1247 | "Babel information\n" | |
1248 | "Configuration information\n") | |
1249 | { | |
03a38493 PG |
1250 | struct babel *babel_ctx; |
1251 | ||
5c7571d4 | 1252 | vty_out (vty, " -- Babel running configuration --\n"); |
ca10883e | 1253 | show_babel_main_configuration(vty); |
ca10883e | 1254 | |
03a38493 PG |
1255 | babel_ctx = babel_lookup(); |
1256 | if (babel_ctx) { | |
1257 | vty_out (vty, " -- distribution lists --\n"); | |
1258 | config_show_distribute(vty, babel_ctx->distribute_ctx); | |
1259 | } | |
ca10883e DS |
1260 | return CMD_SUCCESS; |
1261 | } | |
1262 | ||
1263 | void | |
4d762f26 | 1264 | babel_if_init(void) |
ca10883e DS |
1265 | { |
1266 | /* initialize interface list */ | |
ce19a04a DL |
1267 | hook_register_prio(if_add, 0, babel_if_new_hook); |
1268 | hook_register_prio(if_del, 0, babel_if_delete_hook); | |
ca10883e DS |
1269 | |
1270 | babel_enable_if = vector_init (1); | |
1271 | ||
1272 | /* install interface node and commands */ | |
1273 | install_node (&babel_interface_node, interface_config_write); | |
bd8d8973 | 1274 | if_cmd_init(); |
ca10883e DS |
1275 | |
1276 | install_element(BABEL_NODE, &babel_network_cmd); | |
1277 | install_element(BABEL_NODE, &no_babel_network_cmd); | |
1278 | install_element(INTERFACE_NODE, &babel_split_horizon_cmd); | |
1279 | install_element(INTERFACE_NODE, &no_babel_split_horizon_cmd); | |
1280 | install_element(INTERFACE_NODE, &babel_set_wired_cmd); | |
1281 | install_element(INTERFACE_NODE, &babel_set_wireless_cmd); | |
1282 | install_element(INTERFACE_NODE, &babel_set_hello_interval_cmd); | |
1283 | install_element(INTERFACE_NODE, &babel_set_update_interval_cmd); | |
1284 | install_element(INTERFACE_NODE, &babel_set_rxcost_cmd); | |
1285 | install_element(INTERFACE_NODE, &babel_set_channel_cmd); | |
1286 | install_element(INTERFACE_NODE, &babel_set_rtt_decay_cmd); | |
1287 | install_element(INTERFACE_NODE, &babel_set_rtt_min_cmd); | |
1288 | install_element(INTERFACE_NODE, &babel_set_rtt_max_cmd); | |
1289 | install_element(INTERFACE_NODE, &babel_set_max_rtt_penalty_cmd); | |
1290 | install_element(INTERFACE_NODE, &babel_set_enable_timestamps_cmd); | |
1291 | install_element(INTERFACE_NODE, &no_babel_set_enable_timestamps_cmd); | |
1292 | install_element(INTERFACE_NODE, &babel_set_channel_interfering_cmd); | |
1293 | install_element(INTERFACE_NODE, &babel_set_channel_noninterfering_cmd); | |
1294 | ||
1295 | /* "show babel ..." commands */ | |
1296 | install_element(VIEW_NODE, &show_babel_interface_cmd); | |
1297 | install_element(VIEW_NODE, &show_babel_neighbour_cmd); | |
1298 | install_element(VIEW_NODE, &show_babel_route_cmd); | |
1299 | install_element(VIEW_NODE, &show_babel_route_prefix_cmd); | |
1300 | install_element(VIEW_NODE, &show_babel_route_addr_cmd); | |
1301 | install_element(VIEW_NODE, &show_babel_route_addr6_cmd); | |
1302 | install_element(VIEW_NODE, &show_babel_parameters_cmd); | |
1303 | } | |
1304 | ||
1305 | /* hooks: functions called respectively when struct interface is | |
1306 | created or deleted. */ | |
1307 | static int | |
1308 | babel_if_new_hook (struct interface *ifp) | |
1309 | { | |
1310 | ifp->info = babel_interface_allocate(); | |
1311 | return 0; | |
1312 | } | |
1313 | ||
1314 | static int | |
1315 | babel_if_delete_hook (struct interface *ifp) | |
1316 | { | |
1317 | babel_interface_free(ifp->info); | |
1318 | ifp->info = NULL; | |
1319 | return 0; | |
1320 | } | |
1321 | ||
1322 | /* Output an "interface" section for each of the known interfaces with | |
1323 | babeld-specific statement lines where appropriate. */ | |
1324 | static int | |
1325 | interface_config_write (struct vty *vty) | |
1326 | { | |
f4e14fdb | 1327 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
ca10883e DS |
1328 | struct interface *ifp; |
1329 | int write = 0; | |
1330 | ||
451fda4f | 1331 | FOR_ALL_INTERFACES (vrf, ifp) { |
a8b828f3 | 1332 | vty_frame (vty, "interface %s\n",ifp->name); |
ca10883e | 1333 | if (ifp->desc) |
5c7571d4 | 1334 | vty_out (vty, " description %s\n",ifp->desc); |
ca10883e DS |
1335 | babel_interface_nfo *babel_ifp = babel_get_if_nfo (ifp); |
1336 | /* wireless is the default*/ | |
1337 | if (CHECK_FLAG (babel_ifp->flags, BABEL_IF_WIRED)) | |
1338 | { | |
5c7571d4 | 1339 | vty_out (vty, " babel wired\n"); |
ca10883e DS |
1340 | write++; |
1341 | } | |
1342 | if (babel_ifp->hello_interval != BABEL_DEFAULT_HELLO_INTERVAL) | |
1343 | { | |
5c7571d4 | 1344 | vty_out (vty, " babel hello-interval %u\n", |
96ade3ed | 1345 | babel_ifp->hello_interval); |
ca10883e DS |
1346 | write++; |
1347 | } | |
1348 | if (babel_ifp->update_interval != BABEL_DEFAULT_UPDATE_INTERVAL) | |
1349 | { | |
5c7571d4 | 1350 | vty_out (vty, " babel update-interval %u\n", |
96ade3ed | 1351 | babel_ifp->update_interval); |
ca10883e DS |
1352 | write++; |
1353 | } | |
1354 | /* Some parameters have different defaults for wired/wireless. */ | |
1355 | if (CHECK_FLAG (babel_ifp->flags, BABEL_IF_WIRED)) { | |
1356 | if (!CHECK_FLAG (babel_ifp->flags, BABEL_IF_SPLIT_HORIZON)) { | |
5c7571d4 | 1357 | vty_out (vty, " no babel split-horizon\n"); |
ca10883e DS |
1358 | write++; |
1359 | } | |
1360 | if (babel_ifp->cost != BABEL_DEFAULT_RXCOST_WIRED) { | |
5c7571d4 | 1361 | vty_out (vty, " babel rxcost %u\n", babel_ifp->cost); |
ca10883e DS |
1362 | write++; |
1363 | } | |
1364 | if (babel_ifp->channel == BABEL_IF_CHANNEL_INTERFERING) { | |
5c7571d4 | 1365 | vty_out (vty, " babel channel interfering\n"); |
ca10883e DS |
1366 | write++; |
1367 | } else if(babel_ifp->channel != BABEL_IF_CHANNEL_NONINTERFERING) { | |
5c7571d4 | 1368 | vty_out (vty, " babel channel %d\n",babel_ifp->channel); |
ca10883e DS |
1369 | write++; |
1370 | } | |
1371 | } else { | |
1372 | if (CHECK_FLAG (babel_ifp->flags, BABEL_IF_SPLIT_HORIZON)) { | |
5c7571d4 | 1373 | vty_out (vty, " babel split-horizon\n"); |
ca10883e DS |
1374 | write++; |
1375 | } | |
1376 | if (babel_ifp->cost != BABEL_DEFAULT_RXCOST_WIRELESS) { | |
5c7571d4 | 1377 | vty_out (vty, " babel rxcost %u\n", babel_ifp->cost); |
ca10883e DS |
1378 | write++; |
1379 | } | |
1380 | if (babel_ifp->channel == BABEL_IF_CHANNEL_NONINTERFERING) { | |
5c7571d4 | 1381 | vty_out (vty, " babel channel noninterfering\n"); |
ca10883e DS |
1382 | write++; |
1383 | } else if(babel_ifp->channel != BABEL_IF_CHANNEL_INTERFERING) { | |
5c7571d4 | 1384 | vty_out (vty, " babel channel %d\n",babel_ifp->channel); |
ca10883e DS |
1385 | write++; |
1386 | } | |
1387 | } | |
a8b828f3 | 1388 | vty_endframe (vty, "!\n"); |
ca10883e DS |
1389 | write++; |
1390 | } | |
1391 | return write; | |
1392 | } | |
1393 | ||
1394 | /* Output a "network" statement line for each of the enabled interfaces. */ | |
1395 | int | |
1396 | babel_enable_if_config_write (struct vty * vty) | |
1397 | { | |
1398 | unsigned int i, lines = 0; | |
1399 | char *str; | |
1400 | ||
1401 | for (i = 0; i < vector_active (babel_enable_if); i++) | |
1402 | if ((str = vector_slot (babel_enable_if, i)) != NULL) | |
1403 | { | |
5c7571d4 | 1404 | vty_out (vty, " network %s\n", str); |
ca10883e DS |
1405 | lines++; |
1406 | } | |
1407 | return lines; | |
1408 | } | |
1409 | ||
1410 | /* functions to allocate or free memory for a babel_interface_nfo, filling | |
1411 | needed fields */ | |
1412 | static babel_interface_nfo * | |
1413 | babel_interface_allocate (void) | |
1414 | { | |
1415 | babel_interface_nfo *babel_ifp; | |
aa406bbc | 1416 | babel_ifp = XCALLOC(MTYPE_BABEL_IF, sizeof(babel_interface_nfo)); |
ca10883e DS |
1417 | /* All flags are unset */ |
1418 | babel_ifp->bucket_time = babel_now.tv_sec; | |
1419 | babel_ifp->bucket = BUCKET_TOKENS_MAX; | |
1420 | babel_ifp->hello_seqno = (random() & 0xFFFF); | |
1421 | babel_ifp->rtt_min = 10000; | |
1422 | babel_ifp->rtt_max = 120000; | |
1423 | babel_ifp->max_rtt_penalty = 150; | |
1424 | babel_ifp->hello_interval = BABEL_DEFAULT_HELLO_INTERVAL; | |
1425 | babel_ifp->update_interval = BABEL_DEFAULT_UPDATE_INTERVAL; | |
1426 | babel_ifp->channel = BABEL_IF_CHANNEL_INTERFERING; | |
1427 | babel_set_wired_internal(babel_ifp, 0); | |
1428 | ||
1429 | return babel_ifp; | |
1430 | } | |
1431 | ||
1432 | static void | |
1433 | babel_interface_free (babel_interface_nfo *babel_ifp) | |
1434 | { | |
1435 | XFREE(MTYPE_BABEL_IF, babel_ifp); | |
1436 | } |